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US4995756A
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US
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Vehicle tire deflator
Assignee: Federal Signal Corp
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Filing: 1990-01-29
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Granted: 1991-02-26
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Expires: 2010-01-29
Abstract
Abstract A vehicle tire deflator comprising a foldable and extendible frame with one or more rocker arms releasably carrying hollow spikes and having rocker arm actuators attached to the rocker arms to pivot said arms to position the spikes to enter a tire rolling over the deflator and to hold the rocker arm in position as the spike is withdrawn from the rocker arm.
Inventors
- 👤 Donald C. Kilgrow
- 👤 Linda Kilgrow
- 👤 Melvin H. Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:25
CPC Classifications
E; E01; E01F; E01F13/00; E01F13/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
101 words
A vehicle tire deflator comprising, a plurality of rocker arms; means pivotally interconnecting said rocket arms to allow movement of said rocker arms to a side-by-side folded condition and an end-to-end extended condition; sockets formed in and spaced along each of said rocker arms; hollow spikes each having a base end for insertion into a said socket whereby a pointed end of each said hollow spike projects from said rocker arm; and actuator means connected to extend outwardly and upwardly from said rocker arms when said hollow spikes extend upwardly from the rocker arms, for first contacting a tire rolling thereon.
Claim 2
Dependent Claim
101 words
A vehicle tire deflator comprising, a plurality of rocker arms; means pivotally interconnecting said rocket arms to allow movement of said rocker arms to a side-by-side folded condition and an end-to-end extended condition; sockets formed in and spaced along each of said rocker arms; hollow spikes each having a base end for insertion into a said socket whereby a pointed end of each said hollow spike projects from said rocker arm; and actuator means connected to extend outwardly and upwardly from said rocker arms when said hollow spikes extend upwardly from the rocker arms, for first contacting a tire rolling thereon.
Claim 3
Dependent Claim
20 words
A vehicle tire deflector as in claim 1, wherein the means pivotally interconnecting the rocker arms comprises parallel base supports.
Claim 4
Dependent Claim
73 words
A vehicle tire deflector as in claim 2, wherein the base supports each comprise first and second offset legs interconnected by a diagonal portion, and wherein the mid-portion of one base support is pivotally connected to one end of a first leg of the other base support by a rocker arm and the end of the other end of the rocker arm is pivotally connected to the one leg of another base support.
Claim 5
Dependent Claim
38 words
A vehicle tire deflator as in claim 1, wherein the actuator means includes a ramp means extending from a shoulder formed on an end of each rocker arm to be engaged by a tire rolling onto the deflator.
Claim 6
Dependent Claim
58 words
A vehicle tire deflator as in claim 4, wherein the ramp means has a flat surface and is formed on opposite ends of each rocker arm and is inclined upwardly from each shoulder on each end of said rocker arm where the ramp means flat surface is engaged by a tire rolling onto or off of the deflator.
Claim 7
Dependent Claim
38 words
A vehicle tire deflator as in claim 3, wherein the actuator means includes a ramp means extending from a shoulder formed on an end of each rocker arm to be engaged by a tire rolling onto the deflator.
Claim 8
Dependent Claim
58 words
A vehicle tire deflator as in claim 6, wherein the ramp means has a flat surface and is formed on opposite ends of each rocker arm and is inclined upwardly from each shoulder on each end of said rocker arm whereby the ramp means flat surface is engaged by a tire rolling onto or off of the deflator.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-25 | 1994-08-27 | 1995-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-25 | 1998-08-27 | 1999-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-25 | 2002-08-27 | 2003-02-26 | $7700.00 | Window Closed / Lapsed |